According to a press release, Amazon has just cast Black-ish’s Marsai Martin in its upcoming live-action special based on the popular historically-themed American Girl dolls. Martin will be starring as Melody, a little girl living in 1963 Detroit in the midst of the civil rights movement. The story revolves around her first beginning to notice the “racial inequality surrounding her,” shaking her belief in the “promise of our country’s Pledge Of Allegiance.” We don’t want to spoil too much, but the press release says that she then goes on an “emotional journey of self-reflection” and learns that “it’s important to stand up for what’s right, even when it’s hard or scary.”